ISDA

Entry Detail

PDB ID:

2MP8

Keywords:

ANTIMICROBIAL PROTEIN

Title:

NMR structure of NKR-5-3B

Biological Source:

Source Organism:

Enterococcus faecalis

PDB Version:

Deposition Date:

2014-05-13

Release Date:

2015-05-13

Method Details:

Experimental Method:

SOLUTION NMR

Conformers Calculated:

Conformers Submitted:

Selection Criteria:

structures with the lowest energy

Download Validation Report

Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Description:NKR-5-3B
Chain IDs:A
Chain Length:64
Number of Molecules:1
Biological Source:Enterococcus faecalis

UniProt ID:A0A0M3KKS4 Pfam ID:PF09221

Ligand Molecules

Primary Citation

Identification, Characterization, and Three-Dimensional Structure of the Novel Circular Bacteriocin, Enterocin NKR-5-3B, from Enterococcus faecium

Himeno, K, Rosengren, K.J, Inoue, T, Perez, R.H, Colgrave, M.L, Lee, H.S, Chan, L.Y, Henriques, S.T, Fujita, K, Ishibashi, N, Zendo, T, Wilaipun, P, Nakayama, J, Leelawatcharamas, V, Jikuya, H, Craik, D.J, Sonomoto, K.Show

Biochemistry 54 4863 4876 (2015)

PMID: 26174911 DOI: 10.1021/acs.biochem.5b00196

Abstact

Enterocin NKR-5-3B, one of the multiple bacteriocins produced by Enterococcus faecium NKR-5-3, is a 64-amino acid novel circular bacteriocin that displays broad-spectrum antimicrobial activity. Here we report the identification, characterization, and three-dimensional nuclear magnetic resonance solution structure determination of enterocin NKR-5-3B. Enterocin NKR-5-3B is characterized by four helical segments that enclose a compact hydrophobic core, which together with its circular backbone impart high stability and structural integrity. We also report the corresponding structural gene, enkB, that encodes an 87-amino acid precursor peptide that undergoes a yet to be described enzymatic processing that involves adjacent cleavage and ligation of Leu(24) and Trp(87) to yield the mature (circular) enterocin NKR-5-3B.

Legend

Protein

Chemical

Disease

Primary Citation of related structures